On Tue, 2006-10-24 at 21:44 -0400, John Poelstra wrote: > I have a 64bit box that I've been running the i386 install of FC5 on. Now I'd like to upgrade (not reinstall) it to the x86_64 version of FC6. I'm guessing this isn't something that is supported, but on the other hand I thought it might work. > > Anybody know if this will work or have any other thoughts? > > Thanks, > John > I would not recommend it. The switch of architecture means almost 100% of the installed packages would need to be replaced. That often does not happen cleanly with an upgrade on the same architecture. It almost certainly would fail with an architecture change as well as the upgrade.